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selftest: net: Fix error message if empty variable

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Fix to avoid cases where the `res` shell variable is
empty in script comparisons.
The comparison has been modified into string comparison to
handle other possible values the variable could assume.

The issue can be reproduced with the command:
make kselftest TARGETS=net

It solves the error:
./tfo_passive.sh: line 98: [: -eq: unary operator expected

Signed-off-by: Alessandro Zanni <alessandro.zanni87@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250925132832.9828-1-alessandro.zanni87@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Alessandro Zanni
2025-09-25 15:28:23 +02:00
committed by Jakub Kicinski
parent 793adf57e2
commit 81dcfdd21d
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/net/tfo_passive.sh
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@@ -95,7 +95,7 @@ wait
res=$(cat $out_file)
rm $out_file
if [ $res -eq 0 ]; then
if [ "$res" = "0" ]; then
echo "got invalid NAPI ID from passive TFO socket"
cleanup_ns
exit 1